Παραπομπή σε μορφή APA (7η εκδ.)

Mbaekwe, E. I., & Isichei, A. O. (2014). Ecology and Biology of Piliostigma Thonningii (Schum.) Milne-Redhead in the Guinea Savanna Zone of Nigeria. Obafemi Awolowo University.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Mbaekwe, Ebenezer Ike, και A. O. Isichei. Ecology and Biology of Piliostigma Thonningii (Schum.) Milne-Redhead in the Guinea Savanna Zone of Nigeria. Obafemi Awolowo University, 2014.

Παραπομπή σε μορφή MLA (9th εκδ.)

Mbaekwe, Ebenezer Ike, και A. O. Isichei. Ecology and Biology of Piliostigma Thonningii (Schum.) Milne-Redhead in the Guinea Savanna Zone of Nigeria. Obafemi Awolowo University, 2014.